I don't think they are gonna stick to any direct form of turn. Actually, if the E plays it simple it could be good fun. They shouldn't have them touch each other. Book them together as a forced pairing, under some pretense, with AirBoom and some else, hopefully someone who could use a good rub like Daniel Bryan or Sheamus vs. a decent stable of heels like Del Rio, Ziggler, Barrett, and it really should be a reinstated Truth and Miz. Rock eliminates two, Cena eliminates two. Then the finish could work a couple of ways, they could get lazy and have them dust off the heels together, like in a I can top you type situation and end the show on a happy, dual face note. There can be a little animosity over who is going to pin the last guy. Or they can have the last person Cena eliminates attack an unsuspecting Rock as he's making his exit, forcing there to be commotion where the ref and Cena are distracted, remaining heel hits Cena with his finisher, Cena is eliminated. Rock over comes a beating, wins the match and the crowd goes batshit crazy. Or you could flip the situation and if they want this to be the catalyst for someone to turn fully. I just think the Rock needs to win this solo and that the E is really going to test the waters well for a face-face match before directly dedicating themselves to a turn.